/*!	 valuenodeadd.cpp
**	 Template File
**
**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
**
**	This package is free software; you can redistribute it and/or
**	modify it under the terms of the GNU General Public License as
**	published by the Free Software Foundation; either version 2 of
**	the License, or (at your option) any later version.
**
**	This package is distributed in the hope that it will be useful,
**	but WITHOUT ANY WARRANTY; without even the implied warranty of
**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
**	General Public License for more details.
**
*/

#ifdef USING_PCH
#	include "pch.h"
#else
#ifdef HAVE_CONFIG_H
#	include <config.h>
#endif

#include <synfig/general.h>

#include "valuenodeadd.h"
#include <synfigapp/canvasinterface.h>

#include <synfigapp/localization.h>

#endif

using namespace std;
using namespace etl;
using namespace synfig;
using namespace synfigapp;
using namespace Action;

ACTION_INIT(Action::ValueNodeAdd);
ACTION_SET_NAME(Action::ValueNodeAdd, "ValueNodeAdd");
ACTION_SET_LOCAL_NAME(Action::ValueNodeAdd, N_("Add ValueNode"));
ACTION_SET_TASK(Action::ValueNodeAdd, "add");
ACTION_SET_CATEGORY(Action::ValueNodeAdd, Action::CATEGORY_VALUENODE);
ACTION_SET_PRIORITY(Action::ValueNodeAdd, 0);
ACTION_SET_VERSION(Action::ValueNodeAdd, "0.0");
ACTION_SET_CVS_ID(Action::ValueNodeAdd, "$Id$");

Action::ValueNodeAdd::ValueNodeAdd()
{
}

Action::ParamVocab
Action::ValueNodeAdd::get_param_vocab()
{
    ParamVocab ret(Action::CanvasSpecific::get_param_vocab());

    ret.push_back(ParamDesc("new", Param::TYPE_VALUENODE)
                  .set_local_name(_("New ValueNode"))
                  .set_desc(_("ValueNode to be added"))
                 );

    ret.push_back(ParamDesc("name", Param::TYPE_STRING)
                  .set_local_name(_("Name"))
                 );

    return ret;
}

bool
Action::ValueNodeAdd::is_candidate(const ParamList &x)
{
    return candidate_check(get_param_vocab(), x);
}

bool
Action::ValueNodeAdd::set_param(const synfig::String& param_name, const Action::Param &param)
{
    if (param_name == "new" && param.get_type() == Param::TYPE_VALUENODE) {
        value_node = param.get_value_node();

        return true;
    }

    if (param_name == "name" && param.get_type() == Param::TYPE_STRING) {
        name = param.get_string();

        return true;
    }

    return Action::CanvasSpecific::set_param(param_name, param);
}

bool
Action::ValueNodeAdd::is_ready()const
{
    if (!value_node || name.empty()) {
        return false;
    }

    return Action::CanvasSpecific::is_ready();
}

void
Action::ValueNodeAdd::perform()
{
    if (value_node->is_exported()) {
        throw Error(_("Parameter appears to already be exported"));
    }

    try {
        get_canvas()->add_value_node(value_node, name);
    } catch (Exception::IDAlreadyExists) {
        throw Error(_("Another exported ValueBase with this name already exists"));
    } catch (...) {
        throw Error(_("Exception caught on Add ValueNode."));
    }

    set_dirty(false);

    // Signal that a layer has been inserted
    if (get_canvas_interface()) {
        get_canvas_interface()->signal_value_node_added()(value_node);
    } else {
        synfig::warning("CanvasInterface not set on action");
    }
}

void
Action::ValueNodeAdd::undo()
{
    try {
        get_canvas()->remove_value_node(value_node, true);
    } catch (...) {
        throw Error(_("Exception caught on Remove ValueNode."));
    }

    set_dirty(false);

    // Signal that a layer has been inserted
    if (get_canvas_interface()) {
        get_canvas_interface()->signal_value_node_deleted()(value_node);
    } else {
        synfig::warning("CanvasInterface not set on action");
    }
}